Legacy Technologies Ranked #26–#50 in Vietnam by Market Share (2026)

📈 Legacy Technologies Ranked #26–#50 in Vietnam

Legacy technologies are platforms and tools that have been discontinued or shut down and no longer operate. Some are completely defunct, while others remain functional but unsupported.

Vietnam is a Southeast Asian country with a population of over 99 million people.

Statistics based on 25K+ analyzed websites. About this data

The following list shows the legacy technologies ranked from 26th to 50th out of 63 used on websites in Vietnam.

Rank	Name	Market share
26	Foursquare New York, United States City Guide was a location-based social networking app that allowed users to discover and review local businesses and attractions. Free$$$Legacy	0.5%
27	Google Webmaster Tools Mountain View, California, United States The old Google Webmaster Tools, detected by the meta name "verify-v1", which have been deprecated in favor of Google Search Console. FreeLegacy	0.5%
28	Lightbox for Bootstrap A lightbox module for Bootstrap that supports images, YouTube videos and galleries - built around Bootstrap's Modal plugin. FreeOpen sourceLegacy	0.4%
29	Polymer A library for creating encapsulated, reusable web components. FreeOpen sourceLegacy	0.4%
30	YUI New York, United States A legacy, open-source JavaScript and CSS library for building interactive web applications with a focus on modular architecture and cross-browser consistency. FreeOpen sourceLegacy	0.3%
31	Cufon A discontinued JavaScript library that performs text replacement on web pages, using the canvas element and VML to render fancy fonts. FreeOpen sourceLegacy	0.3%
32	Glitch San Francisco, California, United States A collaborative programming environment that was shut down after being acquired by Fastly. Legacy	0.3%
33	Shadowbox A lightbox library for photos and videos, last released in 2014. FreeOpen sourceLegacy	0.3%
34	Closure Library Mountain View, California, United States A low-level JavaScript library designed for building complex and scalable web applications. FreeOpen sourceLegacy	0.3%
35	iScroll A high-performance JavaScript library for smooth scrolling. FreeOpen sourceLegacy	0.3%
36	ASKfm Riga, Latvia A question and answer social networking site that was shut down at the end of 2024. Legacy	0.2%
37	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.2%
38	Cloudflare Apps San Francisco, California, United States A deprecated service that allowed the installation of third-party scripts/plugins on a website with a single click. Legacy	0.2%
39	Critters San Francisco, California, United States A deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy	0.2%
40	Google Code Archive Mountain View, California, United States Google Code was a code hosting service for open source projects. FreeLegacy	0.2%
41	Salesforce Chat San Francisco, California, United States A live chat solution from Salesforce that is currently in maintenance-only mode and is scheduled to be retired in February 2026. Legacy	0.1%
42	Oracle Moat Austin, Texas, United States A measurement and marketing analytics suite designed to measure media performance across digital and TV advertising campaigns. Legacy	0.1%
43	Google Podcasts Mountain View, California, United States A podcasting directory that was shut down in mid-2024 with the migration to YouTube Music. Legacy	0.1%
44	Fort Awesome A commercial icon font service that allowed users to create custom icon fonts by selecting specific icons for their projects. Free$49+/yearLegacy	0.1%
45	Prefix-free A legacy script that adds browser prefixes to CSS code when needed for old browsers. FreeOpen sourceLegacy	0.08%
46	HeadJS A JavaScript loader that loads scripts in parallel, but executes them in order. FreeOpen sourceLegacy	0.07%
47	Microsoft FrontPage Redmond, Washington, United States A WYSIWYG HTML editor and website administration tool that was part of Microsoft Office until it was discontinued in 2003. $149Legacy	0.07%
48	Flattr Malmö, Sweden A micro-donation platform that shut down in November 2023. Legacy	0.05%
49	Oribi Mountain View, California, United States An all-in-one marketing analytics solution acquired by LinkedIn. Legacy	0.04%
50	ES6 Shim Provides compatibility shims so that legacy JavaScript engines behave as closely as possible to ECMAScript 6. FreeOpen sourceLegacy	0.04%

👉 See Also

🌎 Legacy in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 25,986 websites from Vietnam.
We currently track the presence of 117 legacy technologies across the web.
Of these, 63 were detected on websites from Vietnam.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.